overleaf/services/web/public/coffee/ide/history/HistoryV2Manager.coffee
2017-12-19 13:58:47 +00:00

291 lines
8.3 KiB
CoffeeScript

define [
"moment"
"ide/colors/ColorManager"
"ide/history/controllers/HistoryListController"
"ide/history/controllers/HistoryDiffController"
"ide/history/directives/infiniteScroll"
], (moment, ColorManager) ->
class HistoryManager
constructor: (@ide, @$scope) ->
@reset()
@$scope.toggleHistory = () =>
if @$scope.ui.view == "history"
@hide()
else
@show()
@$scope.$watch "history.selection.updates", (updates) =>
if updates? and updates.length > 0
@_selectDocFromUpdates()
@reloadDiff()
@$scope.$on "entity:selected", (event, entity) =>
if (@$scope.ui.view == "history") and (entity.type == "doc")
# TODO: Set selection.pathname to entity path name
# @$scope.history.selection.doc = entity
@reloadDiff()
show: () ->
@$scope.ui.view = "history"
@reset()
hide: () ->
@$scope.ui.view = "editor"
# Make sure we run the 'open' logic for whatever is currently selected
@$scope.$emit "entity:selected", @ide.fileTreeManager.findSelectedEntity()
reset: () ->
@$scope.history = {
isV2: true
updates: []
nextBeforeTimestamp: null
atEnd: false
selection: {
updates: []
doc: null
range: {
fromV: null
toV: null
}
}
diff: null
}
autoSelectRecentUpdates: () ->
return if @$scope.history.updates.length == 0
@$scope.history.updates[0].selectedTo = true
indexOfLastUpdateNotByMe = 0
for update, i in @$scope.history.updates
if @_updateContainsUserId(update, @$scope.user.id)
break
indexOfLastUpdateNotByMe = i
@$scope.history.updates[indexOfLastUpdateNotByMe].selectedFrom = true
BATCH_SIZE: 10
fetchNextBatchOfUpdates: () ->
url = "/project/#{@ide.project_id}/updates?min_count=#{@BATCH_SIZE}"
if @$scope.history.nextBeforeTimestamp?
url += "&before=#{@$scope.history.nextBeforeTimestamp}"
@$scope.history.loading = true
@ide.$http
.get(url)
.then (response) =>
{ data } = response
console.log "fetchNextBatchOfUpdates", data.updates
@_loadUpdates(data.updates)
@$scope.history.nextBeforeTimestamp = data.nextBeforeTimestamp
if !data.nextBeforeTimestamp?
@$scope.history.atEnd = true
@$scope.history.loading = false
reloadDiff: () ->
diff = @$scope.history.diff
{updates} = @$scope.history.selection
{fromV, toV, pathname} = @_calculateDiffDataFromSelection()
console.log "[reloadDiff] current diff", diff
console.log "[reloadDiff] new diff data", {fromV, toV, pathname}
return if !pathname?
return if diff? and
diff.pathname == pathname and
diff.fromV == fromV and
diff.toV == toV
@$scope.history.diff = diff = {
fromV: fromV
toV: toV
pathname: pathname
error: false
}
# TODO: How do we track deleted files now? We can probably show the diffs easily
# with the new system!
if true # !doc.deleted
diff.loading = true
url = "/project/#{@$scope.project_id}/diff"
query = ["pathname=#{encodeURIComponent(pathname)}"]
if diff.fromV? and diff.toV?
query.push "from=#{diff.fromV}", "to=#{diff.toV}"
url += "?" + query.join("&")
@ide.$http
.get(url)
.then (response) =>
{ data } = response
diff.loading = false
{text, highlights} = @_parseDiff(data)
diff.text = text
diff.highlights = highlights
.catch () ->
diff.loading = false
diff.error = true
else
diff.deleted = true
diff.restoreInProgress = false
diff.restoreDeletedSuccess = false
diff.restoredDocNewId = null
_parseDiff: (diff) ->
row = 0
column = 0
highlights = []
text = ""
for entry, i in diff.diff or []
content = entry.u or entry.i or entry.d
content ||= ""
text += content
lines = content.split("\n")
startRow = row
startColumn = column
if lines.length > 1
endRow = startRow + lines.length - 1
endColumn = lines[lines.length - 1].length
else
endRow = startRow
endColumn = startColumn + lines[0].length
row = endRow
column = endColumn
range = {
start:
row: startRow
column: startColumn
end:
row: endRow
column: endColumn
}
if entry.i? or entry.d?
if entry.meta.user?
name = "#{entry.meta.user.first_name} #{entry.meta.user.last_name}"
else
name = "Anonymous"
if entry.meta.user?.id == @$scope.user.id
name = "you"
date = moment(entry.meta.end_ts).format("Do MMM YYYY, h:mm a")
if entry.i?
highlights.push {
label: "Added by #{name} on #{date}"
highlight: range
hue: ColorManager.getHueForUserId(entry.meta.user?.id)
}
else if entry.d?
highlights.push {
label: "Deleted by #{name} on #{date}"
strikeThrough: range
hue: ColorManager.getHueForUserId(entry.meta.user?.id)
}
return {text, highlights}
_loadUpdates: (updates = []) ->
previousUpdate = @$scope.history.updates[@$scope.history.updates.length - 1]
for update in updates or []
for user in update.meta.users or []
if user?
user.hue = ColorManager.getHueForUserId(user.id)
if !previousUpdate? or !moment(previousUpdate.meta.end_ts).isSame(update.meta.end_ts, "day")
update.meta.first_in_day = true
update.selectedFrom = false
update.selectedTo = false
update.inSelection = false
previousUpdate = update
firstLoad = @$scope.history.updates.length == 0
@$scope.history.updates =
@$scope.history.updates.concat(updates)
@autoSelectRecentUpdates() if firstLoad
_perDocSummaryOfUpdates: (updates) ->
# Track current_pathname -> original_pathname
original_pathnames = {}
# Map of original pathname -> doc summary
docs_summary = {}
updatePathnameWithUpdateVersions = (pathname, update) ->
# docs_summary is indexed by the original pathname the doc
# had at the start, so we have to look this up from the current
# pathname via original_pathname first
if !original_pathnames[pathname]?
original_pathnames[pathname] = pathname
original_pathname = original_pathnames[pathname]
doc_summary = docs_summary[original_pathname] ?= {
fromV: update.fromV, toV: update.toV,
}
doc_summary.fromV = Math.min(
doc_summary.fromV,
update.fromV
)
doc_summary.toV = Math.max(
doc_summary.toV,
update.toV
)
# Put updates in ascending chronological order
updates = updates.slice().reverse()
for update in updates
for pathname in update.pathnames or []
updatePathnameWithUpdateVersions(pathname, update)
for project_op in update.project_ops or []
if project_op.rename?
rename = project_op.rename
updatePathnameWithUpdateVersions(rename.pathname, update)
original_pathnames[rename.newPathname] = original_pathnames[rename.pathname]
delete original_pathnames[rename.pathname]
if project_op.add?
add = project_op.add
updatePathnameWithUpdateVersions(add.pathname, update)
return docs_summary
_calculateDiffDataFromSelection: () ->
fromV = toV = pathname = null
selected_pathname = @$scope.history.selection.pathname
console.log "[_calculateDiffDataFromSelection]", @$scope.history.selection.updates
for pathname, doc of @_perDocSummaryOfUpdates(@$scope.history.selection.updates)
console.log "[_calculateDiffDataFromSelection] doc:", pathname, doc
if pathname == selected_pathname
{fromV, toV} = doc
break
return {fromV, toV, pathname}
# Set the track changes selected doc to one of the docs in the range
# of currently selected updates. If we already have a selected doc
# then prefer this one if present.
_selectDocFromUpdates: () ->
affected_docs = @_perDocSummaryOfUpdates(@$scope.history.selection.updates)
selected_pathname = @$scope.history.selection.pathname
if selected_pathname? and affected_docs[selected_pathname]
# Selected doc is already open
else
# Set to first possible candidate
for pathname, doc of affected_docs
selected_pathname = pathname
break
@$scope.history.selection.pathname = selected_pathname
if selected_pathname?
entity = @ide.fileTreeManager.findEntityByPath(selected_pathname)
if entity?
@ide.fileTreeManager.selectEntity(entity)
_updateContainsUserId: (update, user_id) ->
for user in update.meta.users
return true if user?.id == user_id
return false